Understand mining. These are pretty scammy when you are getting 6 BTC out when you put 1 BTC in.
When you talk about putting 1
BTC and getting 6
BTC, it's not mining but Ponzi schemes.
You need to understand that what people say on Youtube you need to validate and verify yourself.
It is not limited to YouTube, but you do not listen to anyone who is anonymous or known on the Internet unless you check that advice. "This includes your post and this response."
And discover how to buy a coin at the correct price.
It is difficult to know "the correct price" but you should learn when to sell, buy and what are the potential effects of high price and low.